Introduce Entity inheritance, the according Meta Model Element bamm:AbstractEntity and bamm:AbstractProperty as well as the bamm:extends attribute to define a hierarchy of Entities. This replaces the concept of refining an entity and the bamm:refines attribute in order to reduce complexity and modeling efforts.

Remove the bamm:name attribute to remove redundancy. The "short" name of an element is the local name part of its URI, i.e., the part following the # symbol.

The meta model elements Unit, QuantityKinds and their corresponding attributes have been moved from the unit namespace to the bamm namespace. The unit namespace is now solely reserved for the units of the unit catalog itself.

The formal description (units.ttl) of the units catalog is now automatically generated from its original source (see Units) and the local adjustments.

The localeCode and languageCode attributes have been moved from the bamm namespace to the bamm-c namespace.

Shared model elements have been adjusted:

The attributes bamm:properties, bamm:operations and bamm:events on bamm:Aspect are now optional, i.e., they do not have to be added any more even when they are empty lists.

Various issues in the specification (including examples) have been fixed and phrasing has been improved.